Essays about: "activated sludge"

Showing result 1 - 5 of 63 essays containing the words activated sludge.

1. 1. Biokinetic Characterization of Methane Oxidizing Microbiomes Co-metabolizing Trace Organic Chemicals

   University essay from Lunds universitet/Teknisk mikrobiologi

   Author : Hugo Möller; [2024]
   Keywords : Methanotrophs; organic micropollutants; co-metabolism; biodegradation; applied microbiology; Earth and Environmental Sciences;

   Abstract : The presence of organic micropollutants (OMPs) in wastewater effluents is concerning, as they pose a threat to human and aquatic health. Biodegradation via methane-oxidizing bacteria (MOB) is an attractive option, as the method is cheap and effective. MOB can co-metabolize a variety of substrates, there among organic micropollutants. READ MORE

3. 2. Yearly distribution and composition of per- and polyfluoroalkyl substances (PFAS) in Luleå wastewater treatment plant

   University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Author : Moa Sjöberg; [2023]
   Keywords : PFAS; WWTP; Wastewater treatment; Consumer products; Precursors;

   Abstract : PFAS (per- and polyfluoroalkyl substances) are a large group of substances that are used in a large variety of products because of their unique water and dirt repellent properties. The substances are extremely persistent and can spread over large distances in groundwater, surface water, and in the air, which makes them an environmental and a health concern. READ MORE

4. 3. Evaluation of pharmaceutical removal in seven WWTPs : Efficiency of different treatment technologies

   University essay from Stockholms universitet/Institutionen för miljövetenskap

   Author : Viktor Munkhammar; [2023]
   Keywords : Pharmaceuticals; wastewater treatment plant; removal efficiency; biological treatment; ozonation;

   Abstract : Wastewater treatment plants (WWTPs) are originally not constructed to remove pharmaceuticals from the wastewater. Biological treatment technologies used in many WWTPs today, e.g., activated sludge, MBBR and trickling filters, can, however, remove some pharmaceuticals well. READ MORE

5. 4. The Potential of Dissolved Air Flotation for PFAS Reduction in Norrvatten's Future Waterworks

   University essay from KTH/Kemiteknik

   Author : Madeleine Vikström; [2023]
   Keywords : PFAS4; drinking water production; dissolved air flotation; granular activated carbon filter; sludge management; PFAS4; dricksvattenproduktion; flotation; granulärt aktivt kolfilter; slamhantering;

   Abstract : Norrvatten är en av Sveriges största dricksvattenproducenter. Med ett ökande behov av en större produktionskapacitet och nya regleringar, planerar dem att förbättra sin reningsprocess. En aspekt som kräver omfattande undersökning är val av reningsmetod för att nå den nya gränsen från Livsmedelsverket för fyra PFAS kemikalier. READ MORE

6. 5. Experimental Study of Flow Fields in Moving Bed Biofilm Reactors

   University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

   Author : Shea Nee Chew; [2023]
   Keywords : Moving bed biofilm reactors; Biofilm carriers; Mechanical mixing; Mixer configurations; Carrier mixing; Biofilmsreaktorer med rörlig bädd; Biofilmsbärare; Mekanisk blandning; Blandarkonfigurationer; Bärarblandning;

   Abstract : With the rise in global energy prices, as well as energy consumption being the largest source of greenhouse gas emissions, biofilm-based systems utilized for wastewater treatment, such as moving bed biofilm reactors (MBBRs), have grown in popularity for their lower energy consumption compared to conventional activated sludge processes. However, this technology requires large amounts of energy to constantly distribute and suspend its biofilm carrier within the reactor by either aerators or mechanical mixers. READ MORE